ModelCitizen;164343 Wrote: > I agree with all of these posts, in that, what sounds good to the > listener is best. > However, the original quote said that no pre-amp is best. > But, if the Transporter does not have a pre-amp how can it drive my > power amp? It must have a pre-amp (but no pre-amp is good, according to > CliveB). > And a follow on is... how on earth can I just unplug the Transporter > from my power amp then plug in into my pre-amp and it sounds fine.... > i.e it does not blow it up! The signals levels for a feed to a pre-amp > and a power amp vary by a magnitude.... but I don't have to tell the > Transporter what it's feeding, it just seems to know. How can that > be? > MC
Except for the old LP/Phono sources, which are extremely low in level, requiring step-up preamp stages, most modern music sources, ie CD, DVD, Tuners and yes, even Ipods, provide higher output voltages (around 2V), enough to drive many amps into overload. How can you be sure? Just read the specs on many amps...1.5 or 2.0v input sensitivity for rated output, etc.... Your Transporter is of the same high output class, made even better by good power supply and output stages up to 3v and with built-in volume control, it qualify as a preamp, a very good one at that. For most system, a simple 2 channel voltage potentiometer (pot) with low impedance is all one need nowaday to control the signal from your source to many mainstream amps (read the specs listed above just to be sure). A rule of thumb if you use this route: 1/ Use low capacitance cable and keep them as short as possible. 2/ Use high quality pots, such as Alps, Penny&Giles, TKD and those made to order fixed value clickers, ie DACT (nice, but expensive). There are huge aftermarkets for these since people find out how clean they can sound. 3/ Use brandname finished passive preamps (oops, by definitions these are NOT preamps, they are switcher/level reducer) such as Mod Squad (now McCormack), Placette, Django, Simaudio, Bent Audio, EVS and CIAudo etc... 4/ Keep your cables short! -- empty99 ------------------------------------------------------------------------ empty99's Profile: http://forums.slimdevices.com/member.php?userid=3488 View this thread: http://forums.slimdevices.com/showthread.php?t=30852 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
